import numpy as np

a=np.arange(10)
print(a)
b=np.arange(1,10,2)
print(b)
c=np.arange(1,10,2,dtype=np.float64)
print(c,c.dtype)
d=np.arange(1,-10,-3)
print(d)

e=np.linspace(0,10,9)
print(e)
f=np.linspace(0,10,10,endpoint=False)
print(f)
g=np.linspace(0,10,10,endpoint=False,retstep=True)
print(f'{g}-{g[0]}-{g[1]}')

h=np.logspace(0,3,4)
print(h)
i=np.logspace(0,3,4,base=2)
print(i)
j=np.logspace(0,3,3,base=2,endpoint=False)
print(j)
